The 7-A2 rotary automatic telephone system
Maker and role
L. Schreiber, Author
W. Hatton, Author
Production date
1930s
Object detail
Accession number
06-055
Maker
Signature/Marks and Type
Ponsonby Exch Hand-written
ENGR'S Record/X82 Ink Stamp
ENGR'S Record/X82 Ink Stamp
Media/Materials
Physical description
40 p. : ill ; 28 cm.
Credit line
L. Schreiber et al. 1930s. The 7-A2 rotary automatic telephone system, 06-055. Walsh Memorial Library, The Museum of Transport and Technology (MOTAT).
Public comments
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